A man has Rs. 480 in the denominations of one-rupee notes, five-rupee notes and ten-rupee notes. The number of notes of each denomination is equal. What is the total number of notes that he has ?

Question

A man has Rs. 480 in the denominations of one-rupee notes, five-rupee notes and ten-rupee notes. The number of notes of each denomination is equal. What is the total number of notes that he has ?

A. 90

B. 45

C. 60

D. 75

Answer: A

Solution:

Let number of notes of each denomination be x.

Then, x + 5x + 10x = 480

16x = 480

x = 30

Hence, total number of notes = 3x = 90